ghk-cu copper peptide structure GHK-Cu: The Elegant for Skin and Scalp Renewal 070-000-251 Copper Peptide GHK-Cu, CAS
Description
There is no universal answer because it depends on the dose you are targeting and your preferred injection volume

If you reconstitute your peptide at 9pm but don't dose until 5pm the next day, that's fine

occasional mild injectionsite reactions (redness/itch) may occur with subcutaneous administration

Steroids 133 , 3437 (2019)

This creates a mirrored configuration
